- Author: Karl H. Hofmann, Sidney A. Morris
- Language: English
- Year: 2023
- Author: Karl H. Hofmann, Sidney A. Morris
- Language: English
- Year: 2008
- Author: Karl H. Hofmann, Sidney A. Morris
- Language: English
- Year: 2013
- Author: Karl H. Hofmann, Sidney A. Morris
- Language: English
- Year: 2020
- Author: Karl H. Hofmann Sidney A. Morris
- Language: English
- Year: 2020
- Author: Karl H. Hofmann Sidney A. Morris
- Language: English
- Year: 2013
- Author: Karl Heinrich Hofmann Sidney A. Morris
- Language: English
- Year: 2006
- Author: Karl Heinrich Hofmann Sidney A. Morris
- Language: English
- Year: 2006
- Author: Karl Heinrich Hofmann Sidney A. Morris
- Language: English
- Year: 2006